If I do "conda search ipython" then for each of ipython, ipython-notebook and ipython-qtconsole it shows that I'm at version 1.1.0 on python 2.7. It also shows other previous or later versions available (but not 2.0.0).
So I think the answer to your question may be "not today."
Probably the simplest thing is to wait until a version of Anaconda with the new ipython is available, then update Anaconda itself.
Someone please correct me, I'm a newish Anaconda user.